zulip/zerver/lib/initial_password.py

19 lines
589 B
Python

from __future__ import absolute_import
from django.conf import settings
import hashlib
import base64
def initial_password(email):
"""Given an email address, returns the initial password for that account, as
created by populate_db."""
if settings.INITIAL_PASSWORD_SALT is not None:
encoded_key = (settings.INITIAL_PASSWORD_SALT + email).encode("utf-8")
digest = hashlib.sha256(encoded_key).digest()
return base64.b64encode(digest)[:16]
else:
# None as a password for a user tells Django to set an unusable password
return None